Wildlife Research Center® scent elimination formula Over 99% Effective at stopping replicated human odor in testing at Rutgers University! The superior human scent elimination formula Scent Killer® has been chemically blended with the scent of autumn woods and fields to give you the most powerful weapon ever against a buck's most powerful defense - his nose! Unique complex formula eliminates human odor by preventing odor causing molecules from forming a gas. Blends in non-alarming odors common to woods and fields during the fall. Spray Scent Killer® Autumn Formula® onto Clothing and Boot Bottoms! A Heavy Application Works for days after drying!